Tube supporting clip



FIG. 1 is a perspective view of a tube supporting clip showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a front view;

FIG. 4 is an end view;

FIG. 5 is a rear view; and

FIG. 6 is a bottom plan view. 

The ornamental design for a tube supporting clip, substantially as shown. 